Finding the Fourth Proportional to 1,690,681.23, 2,331,779.68 and 1,486,295.15
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Solution
The fourth proportional to 1,690,681.23, 2,331,779.68 and 1,486,295.15 is: 2,049,891.35
Step by Step Solution
- Step 1: Write the proportion equation
1,690,681.23 : 2,331,779.68 = 1,486,295.15 : x - Step 2: Convert to fraction form
1,690,681.23/2,331,779.68 = 1,486,295.15/x - Step 3: Cross multiply
1,690,681.23x = 2,331,779.68 × 1,486,295.15 - Step 4: Simplify right side
1,690,681.23x = 3,465,712,829,252.55 - Step 5: Solve for x
x = 3,465,712,829,252.55/1,690,681.23 - Step 6: Final answer
x = 2,049,891.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.